Abstract: The multiphase flow measurement system and method includes video sensors and illumination along a pipe upstream, and a similar arrangement of sensors and illumination downstream displaced from the first location by a known distance utilized for velocity calculation between images at both locations. Image capturing and processing is done from video data at both locations. Objects corresponding to each flow phase in the video images are characterized and sorted by size, color, spectral properties, shapes, and pattern features using automatic pattern recognition. Image cross-correlation and pattern recognition are applied to each group of objects corresponding to one or more flow phases to estimate the velocity of each phase based on the delay calculation. Flow velocity is calculated from the weighted average of the phase velocities. Overall flow type is estimated using the estimated phase velocities and the areas occupied by the objects corresponding to each phase in the images.

Abstract: The multiphase flow measurement system and method includes video sensors and illumination along a pipe upstream, and a similar arrangement of sensors and illumination downstream displaced from the first location by a known distance utilized for velocity calculation between images at both locations. Image capturing and processing is done from video data at both locations. Objects corresponding to each flow phase in the video images are characterized and sorted by size, color, spectral properties, shapes, and pattern features using automatic pattern recognition. Image cross-correlation and pattern recognition are applied to each group of objects corresponding to one or more flow phases to estimate the velocity of each phase based on the delay calculation. Flow velocity is calculated from the weighted average of the phase velocities. Overall flow type is estimated using the estimated phase velocities and the areas occupied by the objects corresponding to each phase in the images.

Abstract: The system and method for tracking the position of handheld medical instruments provides for instantaneous feedback and instruction to a medical practitioner during performance of a medical procedure. The system and method utilize a graphical user interface, which displays data related to at least a portion of a patient's body. The user then selects a body part of the patient for performing a selected medical procedure. A plurality of pulse receivers are provided for detecting and receiving very narrow pulse electromagnetic pulses. A plurality of instrument pulse emitters are mounted on a handheld medical instrument for selectively transmitting first very narrow pulse electromagnetic pulses, and a to plurality of patient pulse emitters are positioned on the selected body part of the patient for selectively transmitting second very narrow pulse electromagnetic pulses. The position and orientation of the handheld medical instrument with respect to the selected body part is then determined.